alex-plekhanov commented on code in PR #12593: URL: https://github.com/apache/ignite/pull/12593#discussion_r2648051661
########## modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/rule/TableModifyDistributedConverterRule.java: ########## @@ -0,0 +1,147 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.ignite.internal.processors.query.calcite.rule; + +import org.apache.calcite.plan.RelOptCluster; +import org.apache.calcite.plan.RelOptPlanner; +import org.apache.calcite.plan.RelOptRule; +import org.apache.calcite.plan.RelOptUtil; +import org.apache.calcite.plan.RelTraitSet; +import org.apache.calcite.rel.PhysicalNode; +import org.apache.calcite.rel.RelCollations; +import org.apache.calcite.rel.RelDistribution; +import org.apache.calcite.rel.RelNode; +import org.apache.calcite.rel.logical.LogicalTableModify; +import org.apache.calcite.rel.metadata.RelMetadataQuery; +import org.apache.calcite.rel.type.RelDataType; +import org.apache.calcite.rel.type.RelDataTypeField; +import org.apache.calcite.sql.fun.SqlStdOperatorTable; +import org.apache.calcite.tools.RelBuilder; +import org.apache.calcite.util.ImmutableIntList; +import org.apache.ignite.internal.processors.query.calcite.rel.IgniteConvention; +import org.apache.ignite.internal.processors.query.calcite.rel.IgniteTableModify; +import org.apache.ignite.internal.processors.query.calcite.schema.IgniteTable; +import org.apache.ignite.internal.processors.query.calcite.trait.IgniteDistribution; +import org.apache.ignite.internal.processors.query.calcite.trait.IgniteDistributions; +import org.apache.ignite.internal.processors.query.calcite.trait.RewindabilityTrait; +import org.apache.ignite.internal.processors.query.calcite.util.Commons; +import org.jetbrains.annotations.Nullable; + +/** + * Converts LogicalTableModify to distributed IgniteTableModify (Perform table modify on remote nodes, + * aggregate affected rows count and send result to the initiator node). + */ +public class TableModifyDistributedConverterRule extends AbstractIgniteConverterRule<LogicalTableModify> { + /** */ + public static final RelOptRule INSTANCE = new TableModifyDistributedConverterRule(); + + /** + * Creates a ConverterRule. + */ + public TableModifyDistributedConverterRule() { + super(LogicalTableModify.class, TableModifyDistributedConverterRule.class.getSimpleName()); + } + + /** {@inheritDoc} */ + @Override protected @Nullable PhysicalNode convert( + RelOptPlanner planner, + RelMetadataQuery mq, + LogicalTableModify rel + ) { + RelOptCluster cluster = rel.getCluster(); + + // If transaction is explicitly started it's only allowed to perform table modify on initiator node. + if (Commons.queryTransactionVersion(planner.getContext()) != null) + return null; + + RelDataType rowType = rel.getRowType(); + IgniteTable table = rel.getTable().unwrap(IgniteTable.class); + IgniteDistribution inputDistribution = table.distribution(); + boolean affectsSrc = false; + + // Single distribution table modify is prefered in this case. + if (inputDistribution == IgniteDistributions.single()) + return null; + + switch (rel.getOperation()) { + case MERGE: + // Merge contains insert fields as well as update fields, it's impossible to check input distribution + // over these two fields sets in common case, only corner cases can be implemented, skip it for now. + return null; + + case INSERT: + affectsSrc = RelOptUtil.findTables(rel).contains(rel.getTable()); + + if (inputDistribution.getType() != RelDistribution.Type.HASH_DISTRIBUTED) { + if (affectsSrc) + return null; + else + inputDistribution = IgniteDistributions.hash(ImmutableIntList.range(0, rowType.getFieldCount())); + } + + break; + + case UPDATE: + if (inputDistribution.getType() != RelDistribution.Type.HASH_DISTRIBUTED) + inputDistribution = IgniteDistributions.hash(ImmutableIntList.of(0)); + + break; + + case DELETE: + inputDistribution = IgniteDistributions.hash(ImmutableIntList.of(0)); + + break; + + default: + throw new IllegalStateException("Unknown operation type: " + rel.getOperation()); + } + + // Create distributed table modify. + RelBuilder relBuilder = relBuilderFactory.create(rel.getCluster(), null); Review Comment: Fixed -- This is an automated message from the Apache Git Service. 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